Brock's Onix 21 Gym Heroes Price and Trends

Advanced

Hobby

LOW $2.99

FAIR $3.23

HIGH $3.47

Confidence: High

LOW $10.00

FAIR $10.00

HIGH $10.00

Confidence: Medium

LOW $11.50

FAIR $11.50

HIGH $11.50

Confidence: Medium

LOW $15.52

FAIR $15.52

HIGH $15.52

Confidence: Medium

Raw $3.23

PSA10 $10.00

PSA9 $11.50

PSA8 $15.52

Population Information

Total Population 90

PSA 10 Ratio 20.00%

Grading Difficulty Hard

Grade	Population	% of Total

PSA 10	18	20.00%
PSA 9	34	37.78%
PSA 8	25	27.78%
PSA 7	7	7.78%

Transaction History

Date Sold	Grade	Sold Price	Title	Item ID	Marketplace
2025-01-02	Raw	$2.99	Pokemon Gym - Heroes Brockâs Onix #21 Heavy Play #21	135232310269	ebay
2025-01-01	Raw	$3.47	Brock's Onix - 21/132 - Rare Unlimited Gym Heroes - Pokemon TCG HP 21/132	126838355933	ebay
2024-12-18	Raw	$2.95	Pokemon TCG Card BROCK'S ONIX 21/132 Gym Heroes - Non Holo RARE - HP Vintage 21/132	365290172685	ebay
2024-12-16	Raw	$6.99	Pokemon Card - Brock's Onix Gym Heroes 21/132 Rare 21/132	326255302945	ebay
2024-12-15	Raw	$5.48	PokÃ©mon TCG Brock's Onix Gym Heroes 21/132 Regular Unlimited Rare 021/132	186802445873	ebay
2024-12-13	Raw	$2.95	Pokemon BROCK'S ONIX 21/132 Gym Heroes - RARE - MINT	196509329751	ebay
2024-12-12	Raw	$3.49	Brock's Onix - Pokemon TCG - Gym Heroes - 21/132 - Non Holo Rare NM #21	296716807869	ebay
2024-12-09	Raw	$6.99	Pokemon Card - Brock's Onix Gym Heroes 21/132 Rare 21/132	326255170219	ebay
2024-12-06	Raw	$8.77	Pokemon Card - Brock's Onix Holo Rare 21/132 Gym Heroes WOTC	316028469246	ebay
2024-12-01	Raw	$3.78	PokÃ©mon TCG Brock's Onix Gym Heroes 21/132 Regular Unlimited Rare 21/132	196857779691	ebay
2024-11-28	Raw	$4.18	PokÃ©mon TCG Brock's Onix Gym Heroes 21/132 Regular Unlimited Rare 21/132	126626347302	ebay
2024-11-27	Raw	$8.73	Brock's Onix 21/132 Rare Gym Heroes Set Pokemon Card WOTC LP/Played	126753856580	ebay
2024-11-23	Raw	$11.21	Brock's Onix 21/132 Gym Heroes - Rare Pokemon Card - NM/Mint	146099847438	ebay
2024-11-22	Raw	$8.49	Pokemon Brock's Onix 21/132 Rare Unlimited Gym Heroes WOTC Near Mint Pack Fresh 21/132	196739265947	ebay
2024-11-21	Raw	$5.99	Pokemon Card - Brock's Onix Gym Heroes 21/132 Rare 21/132	326345404878	ebay

Card Details

Type

Pokémon

Form

Basic

Typings

Fighting

Weakness

×2

Retreat

×2

Release Date

2000-08-14

Artist

Benimaru Itoh

Bind : 20

Flip a coin. If heads, the Defending Pokémon is now Paralyzed.

Tunneling :

If your opponent has any Benched Pokémon, choose up to 2 of them. This attack does 20 damage to each of them. (Don't apply Weakness and Resistance for Benched Pokémon.) Brock's Onix can't attack during your next turn.